Seán Scanlan
Irish engineer

Sean Scanlan MRIA, IEEE Life Fellow (also John Oliver Scanlan; 1937 – 2 May 2017) was an Irish circuit theorist and electronic engineering professor.
Biography
Scanlan studied electrical engineering at University College Dublin (UCD) and received the Bachelor of Engineering degree in 1959. He then worked at Mullard Research Laboratories in Redhill, Surrey, and continued his studies at the University of Leeds, where he received a PhD in 1966. He became the Chair of Electronic Engineering at Leeds two years later. In 1972, Scanlan earned a Doctor of Science from the National University of Ireland. From 1973 to 2002, he was the Chair of Electronic Engineering at UCD and was the first person in that role.
Scanlan's areas of research included electronic circuit and system design, digital circuits and computing, signal processing, digital filters and switched-capacitor filters. He also made contributions to the theory of high frequency transistor amplifiers and oscillators, as well as tunnel diode amplifiers. His later work included research into lumped networks, and distributed-element circuit.
Scanlan was president of the Royal Irish Academy (RIA) from 1993 to 1996 and a life fellow of the Institute of Electrical and Electronics Engineers (IEEE).
This brief starts where responsible research should: with the source description of “Seán Scanlan” as irish engineer. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the people & ideas register because the source frames it as irish engineer. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q17101582. VIAF identifies the subject as 273367416. The Library of Congress control number is no2018124917. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1937, 2017, 1959 and 1966.
Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Seán Scanlan”, its source revision and the description used here.
- Expand the search: follow Seán Scanlan primary sources, Seán Scanlan archive and Seán research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Seán Scanlan”?
- How has the subject’s reputation changed across later accounts?
- Which primary records establish identity, chronology and institutional ties?
Search terms from this dossier
This entry incorporates text from “Seán Scanlan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.